Saved credit card does not auto fill

[Dinamiko]

Describe the bug

When I try to auto fill the credit card field by selecting the saved credit card, I am not able to do so.

To reproduce

1. Make a payment with credit card processing and mark that credit card to be saved before the payment.
2. Make a payment again but this time with a saved credit card by selecting that saved card from the drop down list
3. Observe, after the saved card selection, credit card field are not populated

Suggested solution

Auto fill credit card fields from stored payment is not possible because we do not have access to the complete card number but only the last four digits.

What we can do however is improve the UX to make it clear that to place the order is only needed to select a saved payment from the select, see attached video:
https://user-images.githubusercontent.com/456223/132839195-309a8f00-cd2c-4f03-8f16-55f8759dc7f1.mp4

Screenshots

Environment (please complete the following information):

• WordPress Version: 5.8
• WooCommerce Version: 5.6
• WooCommerce PayPal Payments Plugin Version: 1.5.1